In a charming stop-motion anime commemorating the 15th anniversary of the beloved San-X character, Rilakkuma, the tale unfolds with Rilakkuma's unexpected arrival at the apartment of Kaoru, a diligent office worker. Rilakkuma, a laid-back bear with a mysterious zipper on his back concealing enigmatic contents, settles into a leisurely routine, relishing treats such as pancakes, omelette rice, pudding, and dango. Alongside Rilakkuma resides Korilakkuma, a tiny white cub, and Kaoru's pet, the cheerful yellow bird named Kiiroitori.